<nav class="navbar navbar-inverse">
  <div class="container">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>                        
      </button>
      <a class="navbar-brand" href="#">Home</a>
    </div>
    <div class="collapse navbar-collapse" id="myNavbar">
      <ul class="nav navbar-nav">
        <li><a href="<?php echo base_url();?>cua-so-tinh-yeu" title="Cửa sổ tình yêu">Cửa sổ tình yêu</a></li>
        <li><a href="<?php echo base_url();?>doc-la" title="Độc lạ">Độc lạ</a></li>
        <li><a href="<?php echo base_url();?>gioi-tinh" title="Giới tính" >Giới tính</a></li>
        <li><a href="<?php echo base_url();?>girl-xinh"title="Girl xinh" >Girl xinh</a></li>
        <li><a href="<?php echo base_url();?>blog-radio" title="Bog radio" >Blog radio</a></li>
        <li><a href="<?php echo base_url();?>esquire" title="Esquire" >Esquire</a></li>
        <li class="dropdown">
          <a class="dropdown-toggle" data-toggle="dropdown" href="#" title="Tin tức game" >Tin tức game
          <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="http://onlinegame.toiplay.com/su-kien" title="Sự kiện" target="_blank" >Sự kiện</a></li>
            <li><a href="http://gamefree001.hayday.mobi/tin-noi-bat.html" title="Nổi bật" target="_blank" >Nổi bật</a></li>
          </ul>
        </li>
      </ul>
    </div>
  </div>
</nav>